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WM8904ECS/R Datasheet(PDF) 24 Page - Wolfson Microelectronics plc

Part # WM8904ECS/R
Description  Ultra Low Power CODEC for Portable Audio Applications
PDF  188 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8904ECS/R Datasheet(HTML) 24 Page - Wolfson Microelectronics plc

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WM8904
Pre-Production
w
PP, Rev 3.3, September 2012
24
Stereo analogue bypass to headphones - IN1L/R, IN2L/R or IN3L/R pins to HPOUTL+HPOUTR pins with 30Ω load.
Test conditions:
LIN_VOL = RIN_VOL = 00101 = +0.0 dB
MCLK = 11.2896MHz
Digital audio interface disabled
Note that the Analogue bypass configuration does not benefit from the Class W dynamic control.
Variant test conditions
AVDD
DCVDD
DBVDD
CPVDD
MICVDD
TOTAL
V
mA
V
mA
V
mA
V
mA
V
mA
mW
Quiescent
HPOUTVOL = 000000 (-57dB)
1.8
1.24
1
0.11
1.8
0.00
1.8
0.26
2.5
0.01
2.82
Po = 0.1mW/channel 1kHz sine wave
HPOUTVOL = 100000 (-25dB)
1.8
1.29
1
0.11
1.8
0.00
1.8
2.05
2.5
0.01
6.13
Po = 1mW/channel 1kHz sine wave
HPOUTVOL = 101010 (-15dB)
1.8
1.30
1
0.11
1.8
0.00
1.8
5.86
2.5
0.01
13.02
Stereo analogue bypass to Line-out - IN1L/R, IN2L/R or IN3L/R pins to LINEOUTL+LINEOUTR pins with 30Ω load.
Test conditions:
LIN_VOL = RIN_VOL = 00101 = +0.0 dB
MCLK = 11.2896MHz
Digital audio interface disabled
Note that the Analogue bypass configuration does not benefit from the Class W dynamic control.
Variant test conditions
AVDD
DCVDD
DBVDD
CPVDD
MICVDD
TOTAL
V
mA
V
mA
V
mA
V
mA
V
mA
mW
Quiescent
LINEOUTVOL = 000000 (-57dB)
1.8
1.04
1.0
0.15
1.8
0.00
1.8
0.21
1.8
0.01
2.41
Quiescent
LINEOUTVOL = 101011 (-14dB)
1.8
1.04
1.0
0.15
1.8
0.00
1.8
0.63
1.8
0.01
3.18
Quiescent
LINEOUTVOL = 111001 (0dB)
1.8
1.04
1.0
0.15
1.8
0.00
1.8
1.25
1.8
0.01
4.28
Off
Note: DC servo calibration is retained in this state as long as DCVDD is supplied. This allows fast, pop suppressed start-up from the
off state.
Variant test conditions
AVDD
DCVDD
DBVDD
CPVDD
MICVDD
TOTAL
V
mA
V
mA
V
mA
V
mA
V
mA
mW
Off (default settings)
No Clocks applied
1.8
0.01
1
0.00
1.8
0.00
1.8
0.01
2.5
0.01
0.04
Off (default settings)
DACDAT, MCLK, BCLK, and LRCLK
applied
1.8
0.01
1
0.02
1.8
0.00
1.8
0.01
2.5
0.01
0.06



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